The descent of man, and Selection in relation to sex

MLA

Darwin, Charles. The Descent of Man, and Selection In Relation to Sex. London: J. Murray, 1871.

APA

Darwin, C. (1871). The descent of man, and Selection in relation to sex. London: J. Murray.

Chicago

Darwin, Charles, The Descent of Man, and Selection In Relation to Sex. London: J. Murray, 1871.